Question about Whirlpool AD50USS Dehumidifier

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Ad50uss is not producing water. Fan and compressor is running . Coils are not getting cold, is refrigerant low? Or could it have a leak? How do u check for refrigerant leak and how do u add refrigerant and how do you check refrigerant level? Thanks

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Compressors have 3 or 5 tubes coming out of the can. Probably 3 in this case. The largest is the suction and the smaller one is the hot gas line. The 3rd is crimped and brazed over. The suction line should be cool or cold (no frost or ice) and the small one should be hot. Be careful of fans. Also, that small line is normally hot enough to burn you. If they are the same temperature, its either low or out of refrigerant (Very common), the liquid line could be plugged (Rare), or the compressor is not pumping (also rare). From here on, you need a compound refrigeration gauge and a line tap. An amp probe would be nice but not needed at this point. If you have an amp probe and the compressor is running and not pumping, the amps will be lower than the name plate RLA or FLA by quite a bit. The name plate should tell you what type of refrigerant it takes. 134A is the new standard but it could be different (R12). Knowing the right type is a must. I have seen compound gauges, line taps, and R134A in hardware stores but you can't add any refrgerant on less your sure no air has gotten in. If the pressure in the suction line matches up close to the ambient temperature when the compressor is off, it has refrigerant. With the gauge on the suction line, start the compressor. If the gauge drops into a vacuum of 25 inches or more, the compressor is probably OK but the refrigerant is gone. If the leak is on the suction side, there will be air in the system. The moisture in the air will freeze immediately at the metering device and it wont get cold. If it all leaked out its another whole process to find and repair the leak, evacuate the system and weigh in the proper charge. I hope this helps. There is a whole process for all of this. Let me know if you have the equipment. I'll get you through.

Posted on Nov 21, 2013

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Posted on Jan 02, 2017

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  • 128 Answers

SOURCE: fan runs ,coils are room temp. should they be hot

A dehumidifier is basically an air conditioner, so some coils should feel hot, the others should feel cold.

If no water is collecting, then the unit's compressor is not starting. Typically you have four possible failures causing this: the switch/wiring for the compressor has an open circuit, the motor-start capacitor for the compressor has failed, the compressor itself has failed, or all the refrigerant has leaked out.

If there is evidence that it is 'trying to start', but then clicking repeatedly, this can be a symptom that the refrigerant has leaked out, as some devices have a pressure switch to prevent compressor damage.

Also, a failed start-capacitor can also cause the click-click noise if the device has a current limiter switch on the compressor.

So the short answer is, it's broken :)

Posted on Oct 21, 2009

shastalaker7
  • 1515 Answers

SOURCE: fan noise but compressor not running and no water

Hi, this very well could be the problem. If you have no water collecting and the coils are rusted, yes, I would say this is the problem. The unit has lost its refrigerant due to pin holes in the coil causing the compressor to either go off on a low pressure switch or has locked the compressor up or it is a burn out. It wouldn't be worth the $$$$ to replace the coils and compressor. I am sorry to tell you this kind of news but you pretty much already figured out the problem on your own, I just confirmed it. The only thing that would be any good on the unit would be the blower motor that is running. I hope this has been of help to you.
Sincerely,
Shastalaker7

Posted on Mar 11, 2010

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1 Answer

How do you check refrigerant in model ad50uss?. The fan is working and I think the compressor is coming on, but after a little while of running the coils do not get cold. Thanks


Turn the unit on and put you hand on the copressor to see
if it's vibrating. If so then it could be low refrigerant or a worn
compressor.
If it's not vibrating then I would check the thermostat,
compressor relay, and compressor for continuity.

Oct 14, 2013 | Whirlpool AD50USS Dehumidifier

1 Answer

Fan runs but does not dehumidify


If the machine's compressor runs when you switch it on, then turn the machine on maximum and let it run for an hour or so. Then check the coils in the back with your hand. If they are not getting cold at all, then there is a significant problem with the refrigeration process in the unit. It may have developed a leak and allowed your refrigerant gas to escape, or there may be another internal problem with the compressor. Either way you would need to have it serviced by a fridge technician, or more likely just replaced with a whole new unit since both options can potentially cost about the same.

If the unit runs normally and the coils are getting cold, then make sure they are not totally icing up which will impede the unit's performance. If your dehumidifier is freezing up then that probably means the unit itself is actually working well, and you probably just have the unit turned up too high for the conditions.

Try turning down the setting on the unit so that it cycles on and off every few hours and does not run continuously.

Also try using some warm soapy water to clean off any dust or oily residue from the cooling coils in the rear of the unit. Remember to also clean the air intake filter while you are at it.

The ambient temperature in the room may also be a bit too low, so you can try adding some heat to the room if necessary. A dehumidifier will not work properly if the ambient air temperature is too low. Basically, the warmer and more humid the room is, the better they work. Since warm air rises, you can even try lifting the unit higher up off the cold floor onto a bench or table where the air is warmer.

Sometimes the drain tube leading to the bucket is clogged. You can often clean this out by inserting the pointy end of a long heavy duty plastic zip tie and jiggling it around a bit. Do not insert anything metal or sharp into the tube or you may damage it.

You can click on the following link for a general operating and troubleshooting guide with additional tips on effective dehumidifier operation:

http://www.allergyconsumerreview.com/dehumidifier-advice-troubleshooting.html


And here is a link to a tip from another Expert (Heatman101) which includes his very detailed troubleshooting guide for dehumidifiers:

http://www.fixya.com/support/r4662409-dehumidifier_running_but_no_water_in


I hope that was helpful to you, good luck and take care.

If you choose to rate this solution, or Heatman 101's tip using the Thumbs Up scale provided, I thank you very much for your time and consideration.

Joe.

Jul 15, 2011 | Whirlpool AD50USS Dehumidifier

1 Answer

The humidifier runs but there is never any water in the bucket. The basement is having a musky smell so I know the humidity is high. What can I do?


If this is a refrigerant based humidifier with a compressor in it, you may be low on refrigerant or have a refrigerant leak.

Apr 11, 2011 | Whirlpool AD50USS Dehumidifier

1 Answer

Santa fe dehumidifier running but not producing any condensate. No ice forming on the coils and filter is clean.


You should check if the compressor is running. Your description makes it appear that the fan may be running and the compressor may not be running.

There are many things that can cause a compressor to cease running:

Open defrost thermostat
Bad run capacitor
Low refrigerant charge (caused by refrigerant leak)
Bad compressor relay
Bad compressor overload
Bad compressor motor

Other things to check:

If the fan switch is set to "on" and the humidity control is set to a high humidity level, the unit may appear to be running, but the compressor will not operate. Check the setting of your humidity control.

If the dehumidifier is operating in a room with a high temperature and a low dew point (very low relative humidity), it may be unable to remove any more moisture from the air.

If you are not comfortable troubleshooting the unit on your own, call the manufacturer service department at 1-800-533-7533, EXT 8459. They are very helpful.

Mar 05, 2011 | Santa Fe 4027450 Dehumidifier

1 Answer

Need a repair shop in the baltimore area to look at my dehumidifier runs but wont pull water


It's cold outside. If the temperature is too low, the cold coils will just frost up and you won't get much water 'pulled'.
Check to see if the cold coils actually are getting cold when the unit is running and the control is set to cause the compressor to work-not just the fan.
If the coils are cold and full of frost or ice, the room is too cold for the dehumidifier to work. You'll have to raise the temperature of the room or wait for warmer weather.
If the coils never get cold, the compressor might be bad or the unit might have lost its freon.
I wonder, though, if it's just too cool and dry right now for a dehumidifier to be pulling more moisture out of the air.
Hope this helps!

Jan 01, 2011 | Haier Dehumidifiers

1 Answer

Fan and compressor run but coils not cold and no dehumidification is happening.


If your compressor is running but the coils are not getting cold, then you have a problem in your refrigerant circuit.....Most likely a restriction or a leak with a leak being the more likely of the two.

Apr 30, 2010 | LG Dehumidifiers

1 Answer

Compressor and fan working but no water


Take the bucket out and remove the two (black colored phillips head) screws at the bottom of the front panel, just above where the bucket was. Push the bottom of the panel to the side a bit to release the retaining tabs from the metal side panels and pull the bottom of the panel forward to remove the panel from the top tabs, leaving wires attached. Put the bucket back in place and observe the coils while compressor and fan run for several minutes (5 to 10 minutes will do). If coils do not get cold, or only get cold over a small area, you have a refrigerant leak. A refrigerant leak is not economical to repair. Most dehumidifiers have a 5 year sealed system warranty, so round up your receipt and call LG with the model and serial number (located on a sicker behind the bucket) to get an exchange unit. Going from memory here, but I think you can reach LG at 1-800-256-0000.

Jan 25, 2010 | LG LHD45EL Dehumidifier

1 Answer

Fan runs ,coils are room temp. should they be hot or cold , no water is collecting in bottom


A dehumidifier is basically an air conditioner, so some coils should feel hot, the others should feel cold.

If no water is collecting, then the unit's compressor is not starting. Typically you have four possible failures causing this: the switch/wiring for the compressor has an open circuit, the motor-start capacitor for the compressor has failed, the compressor itself has failed, or all the refrigerant has leaked out.

If there is evidence that it is 'trying to start', but then clicking repeatedly, this can be a symptom that the refrigerant has leaked out, as some devices have a pressure switch to prevent compressor damage.

Also, a failed start-capacitor can also cause the click-click noise if the device has a current limiter switch on the compressor.

So the short answer is, it's broken :)

Oct 21, 2009 | Whirlpool AD25BBK Dehumidifier

1 Answer

Compressor runs but coils don't get cool to shed water


if the compressor is really running (not just the fan) and it doesnt cool the evaporator coils then it has lost its refrigerant (likely r134a) .. thats a special job to repair.. there also has to be a leak that must be repaired .. then the system is refilled and possibly a dryer added .. if the fan is running only, then there are many other possibilities .. .. you shouldnt run the unit long since part of the cooling for the compressor comes from the refrigerant .. it will shorten its life if run a long time without it ..

Aug 01, 2009 | Haier HD451E Dehumidifier

1 Answer

No water coming out, and no cold coils


Sounds like the unit needs re-gassing and checking for leaks. It is not unusual for a 3-year old unit to require this - especially dehumidifiers as they are often not used all year round, and the seals that stop the gas from leaking are prone to settling and drying out when not in use. This is not a procedure that you are permitted to carry out yourself, just call a local HVAC/Fridge repairer and see what they quote - the job itself is simple enough depending on the leaks and if anything needs replacing, but the gas itself is getting costly. Make sure they do a leak test first. If not topped up with gas then don't run the compressor - the lubricant that protects the compressor is mixed in with the refrigerant gas and will dry out quickly if the gas has leaked. Hope this helps - please ask for more info if you need it :)

May 20, 2007 | Amana DK40 Dehumidifier

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